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TITLE:
ProFTPD "mod_ctrls" Privilege Escalation Vulnerability

SECUNIA ADVISORY ID:
SA23371

VERIFY ADVISORY:
http://secunia.com/advisories/23371/

CRITICAL:
Not critical

IMPACT:
Privilege escalation

WHERE:
>From remote

SOFTWARE:
ProFTPD 1.3.x
http://secunia.com/product/5430/
ProFTPD 1.2.x
http://secunia.com/product/1250/

DESCRIPTION:
Alfredo Ortega has reported a vulnerability in the mod_ctrls module
for ProFTPD, which can be exploited by malicious, local users to gain
escalated privileges.

The vulnerability is caused due to a boundary error within the
"pr_ctrls_recv_request()" function in src/ctrls.c and can be
exploited to cause a buffer overflow by sending specially crafted
control messages to the module.

Successful exploitation may allow to execute arbitrary code with
escalated privileges, but requires that  the mod_ctrl  module is used
and that ACLs allow the attacker to access the module.

The vulnerability is reported in versions prior to 1.3.1rc1.

SOLUTION:
Update to version 1.3.1rc1.

PROVIDED AND/OR DISCOVERED BY:
Alfredo Ortega, Core Security Technologies.

ORIGINAL ADVISORY:
http://www.coresecurity.com/?module=ContentMod&action=item&id=1594

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